Machine for heading bolts.



N0. 784,625. I PATENTBD MAR. 14, 1905. E. A. MOORE 6L F. HOLLAND.

MACHINE FOR HEADING BOLTS.

APPLICATION FILED AUG. 23. 1901,

7 SHEETS-SHEET 1,

Fz'gl. i? 67 /z A? 7.5

No. 784,625. PATENTBD MAR. 14. 1905. E. A. MOORE L P. HOLLAND. MACHINEFOR HEADING BOLTS.

APPLICATION FILED AUG. 28, 1901.`

7 SHEETS-SHEET 2.

M/essess PATENTED MARI 14, 1905. E. A. MOORE & E. HOLLAND.

MACHINE FOR HEADING BOLTS.

APPLICATION FILED AUGfzs, 1901.

7 SHEETS-SHEET 3.

W """fl im No. 784,625. PATENIED MAR. I4, 1905. E. A. MUORE & I'.HOLLAND. MACHINE I'O'R HEADING BOLTS.

APPLICATION FILED AUG. 28, 1901.

7 SHEETS-SHEET 4.

| n an mi?" un. 1 xiinl N0. 784,625, PATENTED MAR. 14, 1905. E. A. MOORE& E. HOLLAND.

MACHINE EUR HEADING BOLTS.

APPLIOATION FILED AUG. 28, 1901.

7 SHEETSSHEET 5.

` lil No. 784,625. PATENTED MAR. 14, 1905. E. A. MOORE ab P. HQLLAND.

MACHINE FOR EADING BGLTS.

APPLIUATION FILED AUG. 2s, 1901.

7 SHEETS-SHEET a.

e www.

, Y PATENTED MAR. I4, 1905. E. A. MUORE a E. HOLLAND. MACHINE EURHEADING BOLTS.

APPLICATION FILED AUG. 28, 1901.

7 SHEETS-SHEET '1.

No. 84.625. Patented March 14, 1905.

UNITED STATES PATENT OEEICE.

ETHELBERT A. MOORE, OF NEW BRITAIN, CONNECTICUT, AND FRANKLIN HOLLAND,OF BALTIMORE, MARYLAND, ASSIGN ORS TO THE STANLEY IVORKS, A- CORPORATIONOF CONNECTICUT.

MACHINE FOR HEADING BOLTS.

SPECIFICATION forming part of Letters Patent No. 784,625, dated March14, 1905.

Application filed August 28, 1901. Serial No. 73,538.

To all wlw/1L lit may @wwf/771,1 and various parts of the machine, allas will Beit known that we, E'IHELBERT ALLEN be hereinafterexplained. 5oMOORE, residing at New Brltain, 1n the county A further object of theInvention is the proof Hartford and State of Connecticut. and vision ofgripping-dies and of mechanism for 5 FRANKLIN HOLLAND, residing' atBaltimore, so actuating said dies that they will be opened in the Stateof Maryland, citizens of the United at the time the feed takes place,will then be States, have invented certain new and useful closed uponthe stock and moved laterally to 55 Improvements in Machines for HeadingBolts, sever a blank therefrom, and after the heading of which thefollowing' is a specification. operation has been completed wille-arythe 1in- Io Our invention relates to bolt-heading maished blank intoline with the rod, so that upon chines, and more particularly to thatclass of the next feed movement the advancing rod said machines forforming what are known as will expel the blank from said dies. 6ohinge-pins-f. e., pins which unite the A further object of the inventionis the proleaves of butt and other hinges-although it is vision of meansfor'slightly advancing the not limited to the production of sucharticles, blank after the preliminary heading operafor by changing' thedies blanks with heads of tions, so that the partially-formed head willbe various configurations may be made in the brought into properposition for receivingl the 65 same machine, if desired. pressure of theside-forming dies, which sus- In a concurrently-pending applicationfiled tain and shape the same duringl the final head- July 8, 1901,Serial No. 67,495, we have illusing operations.

trated and described a bolt-heading machine A further object oftheinvention is the proin which some of the features hereinafterdevision of a device for tripping the feed-pawl 7o scribed aredisclosed, and in said machine the and of means for actuating saiddevice at the head is formed on the end of a rod or wire adproper timein the cycle of operation of the vanced by main and auxiliary feedmeehanmachine.

isms, and the headed bolt or pin is severed In the accompanyingdrawings, Figure 1 is from the stock by cutters operative independa planView of our improved machine. Fig. 75 ently of the gripping-dies, whichin said ma- 2 is a side elevation of the machine, a part chine haveopening and closing movements to thereof being represented in section.Fig. 3

3o clamp and release the rod at the proper times, is an elevation of theopposite side of the mabut have no lateral motion to shear a blankchine, parts being in section. Fig. 4is a lonfrom the stock rod. In ourpresent machine gitudinal vertical section on line w w: of Fig. So thestock rod is fed to the gripping-dies by l. Fig. 5 is a transversesection on line m fr, but one feed mechanism, and said dies are at Fig.1, looking in the direction of the arrow.

3 5 a subsequent period moved laterally to sever Fig. 6 is a transversesection on line fi/y, Fig.

a blank from the rod, which blank is then up- 1, also looking in thedirection of the arrow. set by a series of operations to form a head ofFig. 7 is a partial section on line .s of Fig. S5 the desiredconh'guration and is iinally carried 2. Figs. 8 and 9 are respectivelysectional back to a position in line with the rod, it beand plan viewsof the die-block of the machine.

o ing expelled from the g'ripping-dies when the Fig. 10 is a view,partly in plan and in secnext feed motion takes place. tion, of thecut-off, gripping, and forming Primarily the object of our invention isthe dies at one stage of the operation; and Fig: 11 9o provision of abolt-heading machine having is a similar view showing the gripping-diesimproved feed mechanism for advancing ma- Inoved laterally to sever ablank from the terial to a position where it may receive the stock rod.Fig. 12 is a view similar to Figs. impact of a heading die or dies,improved '10 and 11, showing the gripping-dies closed means foractuating' the side-forming dies, and upon the blank, which has beensubjected to 9 5 -improved meansfor actuating the header-slide thesecond upsetting operation. Figs. 13 and 131L represent sectionaldetails of the die mechism of the machine and illustrate, respectively,the partially-formed head of the blank after the same has been actedupon by two of the heading dies or punches. Fig's. 14, 14, and 14" arepartial sectional views of the die mechanism, illustrating the lastoperations in forming the head on the blank. Figs. 15 and 15L aresimilar views illustrating' the position of the die mechanism just afterthe completion of the heading operations. Fig's. 16 and 17, Sheet 2, areviews in elevation of the pawland-ratchet feed mechanism atdifferentstages of its operation. Figs. 18 to 22, inclusive, are viewsof die mechanism similar to that shown in Figs. 1() to 15, but somodified and arranged that the head is completely formed on the end ofthe stock rod before the gripping-dies move laterally to sever theheaded blank from said rod.

Like numerals designate similar throughout the several views.

Referring' to the drawings, the numeral 5 designates the fralne of themachine, which may be of any desired kind, size, form, and proportionssuitable for the purpose, said frame as shown being in the shape of' aheavy casting having feet 5 52, a laterally-projecting' die-chamber 53,and a depending portion 6, the latter receiving the parts for actuatingthe slide carrying' the heading' dies or punches hereinafter described.

Projecting laterally from the die-chamber 53 is an extension 7,preferably integral with frame 5, although it may be made separatetherefrom and bolted thereto, if desired, and secured to said extensionare brackets 8 8, and in these brackets are journaled the shafts 9 and9, respectively, of a pair of feed-rollers 10 10, employed for advancingthe stock rod to the machine, said shafts being mounted in suitablejournalboxes, the upper ones of wliich may be adjusted in the usualmanner by screws 12 12. Formed in the extension 7 and longitudinallythereof are perforations or openings 13 13, the former being in linewith the feed-point of the grooved peri plicries of the rolls 10 10, andwithin the perforation or opening 13 is fitted a plunger 14, secured atits outer end to a lever 15, the latter being' pivoted at 15 to abracket 16, bolted to the top of the frame 5, and being articulated atits free end to a pitman 17, connected to a lever 18, mounted on arock-shaft 19, jonrnaled in the lower part of the frame, as shown inFigs. 2 and 4, said lever having a wrist-pin 18, fitted in a cam-groove64 of a disk 64, sc cured to the cam-shaft 34.

lith'in the chambercd lateral extension 5:j andthe extension 7 thereofis fitted a die-block 20, through which the perforations 13 13 arecontinued, and this die-block carries a steel cut-off bushing 21,through which the rod is advanced by the feed-rollers, as will behereinafter set forth, and said die-block is preferparts 'of link 26.

ably provided with a recess 21', having dovetailed walls on its rearside which fit over a correspondingly-shaped tongue or projection 22 onthe extension 7, as shown by dotted lines in Figs. 1 and 4, and on itscut-off face said die-block has a longitudinal guideway 212 for thereception of the dies and their actuating'- slides` hereinafterdescribed. Fitted within guides of the frame and the way 212 of dieblock2O are slides 23 23 for actuating the gripping-dies 24 24 of themachine, and these dies are of the usual kind and are provided withstock-receiving grooves upon their sides and are interchangeable andalso reversible-to bring the desired grooves into position foroperation. For actuating the gripping-dies toggle mechanism (designatedin a general way by 25) is employed, as shown in Figs. 5 and 6, and thismechanism'consists in the form illustrated of two toggle -links 26 26,the former having' a ball-shaped or globular end located in a seat of ablock 262, secured to the frame, and the latter having similarly-shapedextremities fitted in sockets of the slide 23 and To the link 26 is alsoconnected a link 27, the globular ends of'which are fitted in sockets ofsaid link 26 and of a block 28, the latter having' a wedge-shapedT-groove 23 on its under side, with which engages a similarly-formedtongue 29, carried by a slide 29, reciprocable in ways on the bottomplate of the ehambered part 5:s of the machine-frame and articulated atits inner end at 30 to a connecting-rod 31, pivoted to a lever 32,carried by a rock-shaft in the bed of the machine and having a stud 32,which fits in a cam-groove in the inner side of a disk 33, secured to ashaft 34, journaled in bearings of brackets 35 35', projecting from therear end of the machine-frame. Upon this disk or wheel is a largegear-wheel 36, actuated by a pinion 37, secured to a shaft 33, journaledin separated bearings 39 39 of the machine-frame 5, said shaft being'rotated by a ffy or band wheel 40, connected to the end thereof oppositefrom the pinion 37. The slide 23, against the end of which the side ofthe gripping-die 24 rests, is provided with a stem 41, sliding' througha perforation in the side wall of the chamber 5, and surrounding thestem between said side wall and the outer end of the slide is a spiralspring'42. This die-slide 23 is U'rooved or slotted in one of its sidesat 23?', and fitted within this slot is a block 43, secured 'to the wallof the chamber 5:S by screws 44, said block acting' as a stop to limitthe outward motion of the slide and the spring' 42 serving to return theslide and thel gripping-die controlled thereby to their normal positionswhen the opposite gripping-die slide 23 is withdrawn by the togglemechanism 25. Fitted for transverse movement on the front of thedie-block 21 at one side of the gripping-die slides 23 23 are slides 4545, respectively, to the ends of which are detachably IOO IOS

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secured by tongue-andgroove connections 46 46 or .in any other desiredway forming'- dies 47 4 7, which serve to shape the sides of thebolt-head to the desired contour; These forming-dieslides 45 45 areactuated by toggle mechanism 48 48` similar to the toggle mechanism 25,each mechanism being composed of three links 49 49 492, the links 49having globular ends fitted in sockets or blocks 50 50, secured to theinner side walls of the chamber 5', and the links 492 also havingsimilarly-shaped extremities. the upper ones of which are littedinsockets of the toggle members 49 and the lower in sockets of blocks 5151, having T-shaped grooves on their under sides, as shown in Figs. 5and 6. For simultaneously actuating' the forming-die slides throughtheir toggle mechanism as described wedges 52 are employed, said wedgesreciprocating' in rabbcted grooves or ways of the base-plates 53 53 ofthe chamber 5S and each wedge being' formed with an inclined tongue orT-shaped tenon 54 54, respectively, for engaging' with the groovedblocks 51 51. For synchronously7 actuating the wedges 52 52 the wedge 52is connected by a pitman or rod to a pivoted lever 56, said leverhaving' a wrist-pin 57 iitted in a cam-groove 58 of the disk 33 and thewedge 52 being similarly connected by a pitman 59 to a lever 60, pivotedat 61 to the machine-frame and carrying a wrist-pin 62, which [itswithin a camgroove 63 in the side of a disk 63, secured to the cam-shaft34. lnasmuch as the camgrooves 58 and 63 are alike, when the cam-` shaft34 is rotated it will be obvious that through the connections describedthe wedges will be simultaneously reciprocated and caused to raise theblocks 51 51, thereby through links 492 straightening the toggles 49 49and simultaneously forcing the forming-dies 47 47 upon the head of thebolt. The groove 58 has in this instance two faces to advance the wedgeand a comparatively short face to retract the same during the secondaryfeed and a face toA retract said wedge during the main feed.

Mounted in the die-block 20 is a plunger 65, having a head 65 at one endand a beveled or wedge-shaped point 652 at its opposite extremity, andsecured to said die-block is a flat spring 66, the end of which bearsagainst the head 65 of the plunger and tends to force said plungerdownward, the result being' that when the gripping-dies 24 24 come to aposition where the beveled point 652 of said plun-` ger can enterbetween them they will be forced apart, and thereby opened, suiiicientplay of said dies for this action being permitted in the groove 213 ofthe die-block in which the gripping-die slides v23 23 and said dies aremounted. l

For causing the feed-rollers 10 10 intermitting'ly to advance the rodthrough the perforation or opening 13 of die-block 2O we secure to tothe wheel 40, above described.

the shaft 9 of the upper feed-roller 10 a ratchetwheel 67, and looselymounted on said shaft 9, so that it may freely swing around the same, isan arm 68, carrying a pawl 69, pivoted to said arm at 69, andarticulated to the upper end of arm 68 is a pitman or connecting rod 70,sleeved at its inner end upon a wrist-pin 71 of a gear-wheel 71, mountedon a short or stub shaft 72, laterally projecting from a part of theframe, as shown more particularly in Fig. 1, said gear-wheel 71 beingdriven by a pinion 73, secured to the shaft 38, which is in turnactuated by abelt (not shown) applied As will be noticed, the arm 68will be actuated back and forth once during each rotation of thegearwheel 71, and if the pawl 69 were permitted to engage the teeth ofratchet-wheel 67 at each movement of the arm 68 the feed would beintermittent and at short intervals while the machine is in operation.ln the construction of our machine, however, it is necessary to arrestthe feed at certain times and then permit the pawl to act to advance theratchet-wheel, thereby turning the rollers 10 10 to cause them toproject the stock rod between the then open gripping-dies with its endslightly advanced beyond the inner faces of said dies, and to preventthe pawl from acting' except at the proper period in the tiniing of themachine we have provided a segment 74, having a flanged periphery 74,said segment constituting a part of or being attached to an arm 75, alsoloosely mounted on the feed-roll shaft 9' adjacent to the inner side ofthe arm 68 and this arm 75 beingarticulated at its lower end to a pitmanor connecting rod 76, pivoted to the deflected upper extremity of alever 77, attached to a rock-shaft 78 or other suitable pivotal supportof the machine-bed. This lever 77 carries near its upper end alaterally-projecting stud 77, upon which may be mounted anantifrietion-roller 7 7, the latter being in contact with a cam 79 onthe periphery of the disk 63 and being caused to engage said cam anddisk by means of a spring 80, secured to said lever at 80 at one end andto a stud or other projection 81 at its opposite end, as illustrated inFig. 2. This peripheral cam 79 occupies about onefifth of the peripheryof the disk 63, and during the rotation of the shaft 34 .said cam 79will bear against the roller 78 and force the connecting-rod 76 andlever 75 tothe position represented in Figs. 2 and 17, therebypermitting the pawl 69 to drop upon the ratchetwheel 67 and to turn saidwheel during the time occupied in the passage of the cam '79 along theroll 77; but after said roll leaves the cam the spring 8O will pull backthe lever 77, to which it is attached, the rod 76, and the arm 75 andwill thereby throw the segment 74 in the direction of .the arrow to theposition shown in Fig. 16. As said segment is thrown to such positionthe flange 74 thereofI ITO TIO

comes into contact with a pin 69"3 on pawl 69, thereby raising said pawlto the position shown in the ligure mentioned and holding it in suchposition until the proper time elapses in the cycle of movements of theVarious parts of the machine to again bring' the feed mechanism intoaction for advancing the stock rod to the dies.

Secured to the shaft 38 between the bearings 39 39 of the frame is aneccentric 82, the usual divided strap 83 of which is connected by aknuckle-joint 8s to a block 85, the latter being' reciprocable in ways86 86 of the machine-frame 5, as illustrated in Fig'. 1.

Designated by the numeral 93 is a headerslide provided with a lateraloffset 93. in a rabbeted portion of which a hardened wear-plate orabutment 87 is detachably secu red by screws 87 or otherwise, as shownin Fig. and also detachably fastened to this lateral offset of theheader-slide 93 and below the wear-plate 87 isa hardened block 88,secured in position b v a screw or screws 89, said plate projecting overthe rear end of the header-slide and serving to sustain an arm 99,extending' laterally from a vertical slide 99, which bears at its lowerend an antifriction-roller 997i. r1`he part 99 of slide 99 constituteswhat is known in the art as a gagger-plate,7 the back of the slide 99being' litted, as by a dovetail or other guide 91, in way of the block85, as illustrated in Fig. 1. Bearing' upon the top of slide 99 and overthe dovetailed portion 91 thereof is a spring 92, secured at one end tothe block 85, and the free end of said spring' normally tends to forceslide 99 downward, so that the plate 99 will rest upon the block 88 withits forward end in engagement with the abutment 87, a'nd when in thisposition the eccentric 82 as it rotates will, through the connectionsdescribed, reciprocate the headerslide, as will be obvious.

At times during the peculiar operation of our in'lproved machine theheader-slide must remain idle, and to enable this result to beaccomplished the block 85 is litted in the guideways 86 86', and to thisblock the strap of the eccentric is connected by the knuckle-joint 811,as above described. This block is, as inst stated, provided on its frontface with a dovetailed guideway in which reciprocates the slide 99, andwhen said slide is forced downward by the spring' 92, secured to theblock, (the free end of such spring bearing upon the top of the slide,)the block as it reciprocatcs will of course carry the header-slide 93with it and will cause the headii'ig die or tool then in position toupset the end of a blank held by the gripping-dies.

For raising the vertical slide 99 an ang'lelever 91 is employed, saidlever being' pivoted at 941' to the framework and consisting' of acomparatively long arm 9st, having a beveled free end 94C, and a shorterarm 9-1", the latter being' articulated at its extremity to a pitman orconnecting rod 95 passing' through an opening 96 in the frame, saidpitman being connected at its opposite end to a pivoted lever 97, havinga stud carrying an antifrictionro1l 97, fitted in a cam-groove 98.(Shown by dotted lines in Fig'. 41 on the left-hand side of the disk641.) This cam-groove 98 is so formed that it will actuate at the propertimes the lever 97 and the connections therefrom to the slide 99 andwill raise said slide and its g'ag'ger-plate 99l to the position shownin Fig. 1 when in the proper timing of the machine it is desired to havethe block 85 reciprocate idly in the guideways 86 86l without actuatingthe header-slide 93.

As will he seen by reference to Figs. 1 and L1, the forward end of theheader-slide 93 is provided with a guide-way 99 for the reception of avertically-reciprocatory slide 199, to which the heading dies or punchesare secured. These heading-dies are, as illustrated in Figs. 11, 13, 13,141, 14C", and 15", four in number, and they are secured in a guidewayo1' a plate 191, adjustabl y connected by screws or rotherwise to theslide 199. r1`he heading-dies are designated, respectively, by thenumerals 1, 2, 3, and 1. and in Figs. 13 and 13, 14 and 1&1 they arerepresented in section in the order in which they act upon the work.Each of the heading dies or punches rests at its rear end against thestraight front surface ofa plate 192, and the rear surface of said plateis of wedge-like formation and bears against a com plementalwedge-surface on a plate 193, adjustably secured to the slide 199. Byadjusting this plate 192 the dies 1 to L1, inclusive, may be forcedoutward in front of the header-slide, and for accomplishing this purposesaid plate is provided with a stem 192, upon which is threaded a nut194, said nut bearing against a lateral extension 195, projecting fromthe plate 193. Secured to the rear side of the slide 199 is alocking-block 196, having a series of four separated notches 1961962196I3 196", said notches corresponding in number to the number ofheading-dies employed. Here it is to be stated that the heading-dies arespaced apart in pairs from each other by means of a lilling piece orstrip 197, as illustrated in Fig. f1. Cooperating with thislocking-block is a locking plate or bar 198, having' an inclined dog' orpawl 198, said locking-plate being' fitted for horizontal movement in aseat of the header-slide 93, in which seat it is held in place by a cap199, said cap being removed in Fig'. 1. \Vhen the plate 198 isreciprocated in one direction, the inclined surface or pawl 198/ thereofis caused to enter the one of the inclined locking' seats ornotches ofthe block 196 which is opposite thereto and to thereby lock the slide199 and the heading-tools carried thereby firmly in position during thestroke of the header-slide. At each end the sliding locking-plate 198 isequipped with antifriction-rollers 119 119/, re-

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spectively, which as the header-slide reciprocates bear againsthardened-steel plates 112 112', secured to the frame, said plates havinginclined surfaces 113 1l3,.against which the rollers bear as theheader-slide moves back and forth. roller 110 will bear against theinclined portion of the plate l12,thereby causing the locking-slide tobe forced laterally and throwing the wedge-shaped dog 108' thereof intothe inclined seat of the locking-block 108, which is then in linetherewith, and when the headerslide is retracted the roller 110 willbear against the inclined surface 113 of plate 112 and will force thelocking plate or slide in the opposite direction, thereby withdrawing`said dog from its seat and releasing the slide 100. At its lower endthis slide 100 is fitted upon a guide bar or plate 114, extendingacrossa slide 116 in the depending portion 6 of the machineframeand ispreferably also providedwith an' antifriction-roller 115, which ridesupon said guide-bar as the header-slide reciprocates, said dependingportion 6 of the machine-frame being formed with a guideway, in which isfitted for rcciprocation said slide116, which carries the guide-bar anda rack 117. Passing through a bearing 118 of the portion 6 of themachine-frame is a short shaft 119, carrying at its inner end a pinion120,the teeth of which are in engagement with the rack 117, secured tothe slide 116, and at its outer end said shaft is provided with anotherpinion, 121, in engagement with a rack 122, which has a tongued portion122', fitted in a seat 123 of an inclined bracket 124, secured to theframe, and for actuating this rack at the proper times it is connectedat 125 to an adjustable pitman 126, the latter -being articulated at itseXtreme inner end to a pivoted lever 127, having a wristpin or stud127', which enters a cam-groove on the left-hand side of the disk 63.The mechanisms for actuating the header-slide and for controlling themovements of the heading dies or punches 1 to 4, inclusive, aresubstantially the same as those illustrated and described in ourconcurrently-pending application, Serial No. 67,495, above referred to,and will therefore require no further explanation.

Our improved machine, as thus far described, operates as follows, viz:In Figs. 1 to 4, inclusive, the machine is shown at the beginning' of acycle of operation, with the pawl 69 in the position represented inFigs. 2 and 17 f// 3., inengagement with the teeth of ratchetwheel67-the wristpin of the gearwheel 71, to which the pitman 70 isconnected, being about on a line horizontal with the axis of the shaft72-and the segmental plate 74 for lifting the pawl being swung back' bythe arm 75, pitman 76, lever 77, and cani 79 of disk 63, secured to thecam-shaft 34. In these positions of the mechanism the pinion 71 as itrotates will, through the connections described, actuate the rollers 1010' and cause As the header-slide moves forward the v them to feed thestock-rod 128 through the -shaft 34, or while the roller 77 of lever 77is in contact with the active surface of cam 79; but when the rollerpasses off from said cam it is forced by spring 80 against theconcentric part of the periphery of disk 63, where it remains during theremaining portion of one rotation of said disk. This action of spring 80upon lever 77, carrying the roller 77', pulls back the connecting-rod 76and, through arm 75, shifts the segmental plate 74, which raises thepawl and stops the feed, said pawl reciprocating idly upon the plate, asshown by dotted lines in Fig. 16, with which its pin 692 is inengagement, until the cycle of operation is completed, when it will beagain permitted to drop to start a new feed. Toggle mechanism 25 isAthen actuated by the mechanism heretofore descirbed to cause the slide23 to force the gripping-die 24 to clamp the rod against the opposingdie 24', and then both dies are forced laterally (the slide 23 yielding,as described) until this movement is arrested by the stop 43. in Figs. 1and 10 to 15, inclusive.) .During this lateral movement4 of thegripping-dies they will sever a blank from the rod by shearing the sameagainst the bushing 21 in die-block 20 and will carry the blank to theposition shown in Fig. 11, with its end projecting infront of said dies.While the action just described is taking place the gagger-plate 90',carried by the verticalslide 90, is in the position represented in Fig.4, and the block therefore reciprocates idly back and forth in itsguideways without actuating the header-slide; but after thegripping-dies have been brought to the position illustrated in Fig. 11the anglelever 94 is swung rearward on its pivot 94 by the lever 97 andcam 98, thereby withdrawing its arm'942 from the roller 90A72 on saidslide 90 and permitting the slide and attached gaggerplate to drop bygravital action, aided, if necessary, by the spring 85. At this time inthe cycle of movement of the machine the vertical slide 100, carryingthe heading dies or tools 1 to 4, inclusive, is down, as shown in Fig.4, and the locking-plate 108 is in the position represented in Fig. 1,with its pawl or dog 108 out of contact with the upper notch 106 of thelocking-block 106. As the headerslide advances under the action of theeccentric 82 the roller 110 will come into contact with the inclinedportion or wedge 113' of the plate 112', and the locking-plate 108 willbe forced laterally to cause itsinclined dog or tooth to enter saidnotch 106, thereby locking the parts carried on the front of theheaderslide rigidly in position, and during the further advancingmovement of said header-slide the die or punch 1 will strike the head ofthe blank and upset it substantially to the shape (Shown ION shown at ain Fig'. 13. After this action has taken place the header-slide andattached tools are withdrawn and said slide is again moved forward, thepunch 2 having been brought into line with the end of the blank by meansof the cam and pinion-and-rack mechanism described, and said punch willupset the end of the blank into the form shown at I; in Figs. 12 and 13Lupon the next forward movement of the header-slide; and when thisoperation has been completed the header-slide again withdraws, thegripping-dies are opened by the mechanism described, and the plunger 14comes into contact with the end of the blank and advances it so that itspartially-headed portion will project slightly farther forward from theface of the gripping-dies, as illustrated in Figs. 14 and 14", and whenin this position the fiange at the base of the incom- `plctely-headcdportion of said blank and the partially-shaped head are so loeated'thatthey may be readily received by the side formingdies 47 47, which arethen simultaneously advanced to close upon the head by the slides 45 45and the toggle and wedge mechanisms described. \Vhi1e these operationsare taking place, the slide 100 has been raised by the pinion-and-rackmechanism described to bring the headingdie or punch 3 into line withthe blank, and the header-slide, again advancing, causes said diefurther to upset the head and to bring it substantially to the shapeshown at c in Fig. 14". The header-slide now withdraws and the slide 100is again raised to bring thefinishingheadf ing-die 4 into line with theend of the blank, and upon the next forward rcciprocation of saidheader-slide this die strikes the head (shaping it to the form shown at(Z in Figs. 14 and 14") and completely finishes the same. Theforming-die slides are then withdrawn by the mechanism described, andthe gripping-slides are also moved to their original positions, carryingthe gripping-dies with the finished blank to the position represented inFig. 15. The gagger-plate is then raised to the position represented inFig. 4, the slide 100 is dropped, bringing the heading-dies to theirnormal positions, and upon the next feed of the stock rod 128 the endthereof will engage with the end of the blank and force the same fromthe gripping-dies. The parts of the machine are now reset fora new cycleof operations, and the work is carried on indefinitely as long as themachine is in operation, as above described, a complete headed blankbeing formed at each rotation of the camshaft 34.

1n the modification of the gripping and forming die mechanism of themachine illustrated in Figs. 18 to 22, inclusive, the projccting end ofthe stock rod or wire 128 is first upset by the heading-punches 1 and 2(which are preferably carried by a single slide) to form the preliminaryheads t and upon each end, and after these operations the grippingdieslides 23 and 2?) are moved laterally to sever, in connection with thecut-off bushing 21, such blank from the rod and bring itinto linel withthe plunger 14, which then advances in the manner above described toproject the blank from the positions shown in Fig. 19 to the positionrepresented in Fig. 20, where the partially-formed head is properlylocated to receive the impact of the side-forming dies 47 47, which aresimultaneously advanced to close upon the same by the slides 45 45',operated by the wed ge-and-toggle mechanism set forth,and while betweenthe forming-dies the partiallyformed head of the blank is further upsetby the heading dies or punches 3 and 4 (also preferably carried byasingle slide) and is brought to its finished form. After the bead hasbeen completed on the blank in this manner the forming-dies arewithdiawn, as shown in.Fig. 22, and the gripping-die slides are moved tothe position shown in said figure, and upon the next operation of thefeed mechanism the finished blank is ejected by the advancing stock rodfrom the machine. 1t will be no- I ticed that in both forms of thegripping and formingdiemechanisms described a partiallyheaded blank isprojected a slight distance in front of the gripping-dies after saidblank has been severed from the stock rod and also that in both of saidforms the finished blank is ejected from the dies by the stock rod as itis again advanced by the feed mechanism.

Our invention is not limited to the specific devices shown and describedfor carrying out the various operations, for feed mechanism differentfrom that shown may be employed, if desired, and the cams and otherdetails may be variously modified, provided they are capable ofimparting the necessary movements in sequential order to the variousparts of the machine. Furthermore, the invention is not limited to theuse of a series of four heading dies or punches, for with slightmodifications of the machine any desired number may be employed.

Having thus described the invention, what we claim, and desire to secureby Letters Patent, ism- 1. In a bolt-machine the combination withheading mechanism adapted to perform a series of operations upon ablank, of a die-block; gripping-dies; means to move the same to sever ablank from the stock-rod and to open the gripping-dies preliminary totheadvance of the blank; forming-dies; and means to advance the blankthrough the gripping-dies after the performance of a portion of saidseries of operations to place its partially-formed head out of contactwith the gripping-dies and into position to be acted upon by theformingdies and heading mechanism in the remainder of said series ofoperations.

2. In a bolt-machine, the combination with stock-feeding mechanism, ofmeans to carry the stock end of the rod; gripping-dies adja- IOO ITO

cent thereto to engage the blank end of the rod and havinga shearing'relation therewith; yieldable means to close the dies; means to shiftthe dies to sever a blank from the stock and to move such severed blankfrom its original position; means for preliminarily upsetting the end ofsaid blank to form a partial head thereon; means to advance thepartiallyheaded blank throug'h the grippingdies; means to open thegripping-dies preliminary to such advance; forming-dies; means toactuate said forming-dies; and means to finishV the head of the blankwhile the forming-dies are closed upon the head-receiving end of saidblank.

3. In a bolt-machine the combination with a die-block having a cut-ofiIdevice, of gripping-dies through which the stock is fed; preliminaryheading' mechanism; means for moving the dies laterally to sever a blankfrom a rod fed through the die-block; forming-dies; means for actuatingthe forming-dies; means for advancing the partially -headed blankthrough the gripping-dies to place its head in position to be acted uponby the forming-dies; means to open the gripping-dies preliminarythereto; andmechanism for finishing' the head of 'said blank.

4j In a bolt-machine, the combination, with stock-rod-feeding mechanism,of a die-block having an opening through which the rod is fed, a bushingin said die-block constituting a eut-ofi' surface; gripping-dies movableback and forth on thc face of said die-block, and adapted to lsever ablank from the rod, to carry it in front of the. heading mechanism, andto return the headed blank to a position in line with the feed-openingof the die-block, where it will be ejected by the stock rod upon thenext feed movement; mechanism for actuating said gripping-dies; headingmechanism; means for actuating said heading' mechanism; forming-dies;mechanism for operating the forming-dies; and means to feed the stock.

5. In a bolt-machine, the combination with feed mechanism, of adie-block having a feedpassagc through which a rod is fed vby saidmechanism; gripping-dies movable back and forth upon the face of saiddie-block, and adapted to sever a blank from the rod, to carry it infront of heading mechanism, and to return the blank after it has beenheaded to a position in line with the feed-passage of the die-block;means for actuating' said gripping-dies; preliminary heading' mechanism;

'means to actuate the same; means to advance the blank in thegripping-dies; forming-dies in front of the gripping-dies; means toactuate said forming-dies; finishing heading-dies; and means to actuatethe same.

G. In a bolt-machine, thecombination, with gripping-dies, and with meansfor actuating said dies to cause them to carry a plain blank in front ofheading mechanism and to return the headed blank to the originalposition of said plain blank, of means for prelii'ninaril y heading saidblank; a device for advancing the blank with its partially-formed headthrough the gripping-dies; means to open said dies preliminary thereto;means for actuating said device; forming-dies; means for actuating theforming-dies; heading-dies for completing the head on the blank; andmeans for actuating' said heading-dies, substantially as described.

7. In a bolt-machine, the combination, with rod-feeding mechanism, of adie-block having an opening through which the rod is fed; gripping-diesmovable laterally back and forth on the face of the die-block, andadapted to sever a blank from the rod; preliminary heading-dies forforming an incomplete head on said blank; finishing heading-dies;formingdies; means to release the g'ripping action of the dies; aplunger for pushing the partiallyheaded blank forward between thegripping'- dies during such release; means for actuating' said plunger;and means for actuating the finishing heading-dies, substantially asdescribed.

8. In a bolt-machine, the combination of the followinginstrumentalities: rod -feeding mechanism; adie-block having acutting-surface through which the rod is fed by .said mechanism; gripping-dies movable back and forth with relation to the die-block; meansfor actuating said gripping-dies to close them upon the rod, and to movethem laterally to sever a blank from said rod and to carry said blank tothe position where it receives the impact of the heading mechanism;preliminary heading mechanism for forming an incomplete head on saidblank; means to release the grip of said4 dies; a device for advancingthe partially-headed blank partly through the gripping-dies; means tocause said dies to again grip the blank; forming-dies; mechanism forclosing said dies upon the partiallyformed head of the blank; headingdies or tools for completing the head of the blank while the same iswithin the forming-dies; and means for actuating the heading-dies, substantially as described.

9. In a bolt-machine, the combination, with rod-feeding mechanism, of adie-block having a rod-passage; gripping-dies shiftable across the saidblock and coi'perative therewith to` sever a blank fromthe rod; meansfor opening' said dies prior to the feed of the rod and the advance ofthe blank and for closing the same thereafter, and for returning' themto their original position; a header-slide carrying a series of headingdies or punches; forming-dies; means for actuating the forming' dies; aplunger for advancingI the blank to a position where it will be actedupon by' the forming-dies; vand means for actuating the heading-diestransversely of the header-slide.

10. In a bolt-machine, the con'ibination, with means to feed the stock,of blank-gripping dies; means for actuating the gripping-dies to IOO IIS

18. In a bolt-machine, the combination,with rod-feeding mechanism, of adie-block having' a pair of parallel perforations; gripping-dies movableback and forth on the face of said die-block; means for actuating saidgrippingdies; forming-dies; means for actuating the forming-dies; aheader-slide; a series of heading dies or punches on the face of saidheaderslide; means for reciprocating said slide to bring the headingdies or punches successively into line with the blank held bythegrippingdies; a plunger for advancing the blank partly through saidgripping-dies, so that its head portion may receive the action of theforming-dies; means to release the gripping-dies preliminary thereto; apivoted lever connected to said plunger; a pitman articulated to saidlever; and lever-and-cam mechanism for actuating said pitman,substantially as described.

19. In a bolt-machine, the combination, with a die-block through whichthe work is fed, of gripping-dies; toggles for closing said dies; meansfor opening said dies; a link connected to the die-closing toggles atone end; a block to which the opposite end of said link is connected; awedge for actuating said block; a pitman pivoted to the wedge;cam-and-lever mechanism for actuating the pitman; and mechanism forheading the work, substantially as described.

20. In a bolt-machine, the combination, with a die-block havingperforations, of means for feeding a stock-rod through one of saidperforations; rod-gripping mechanism coperative with the said block tocut off the stock and into blanks; wedge and toggle devices foractuating said gripping mechanism to sever a blank from the rod and tocarry it to the position where it is headed and to there release thegripping action of the dies to permit the advance of the blank;preliminary headingdies or punches; means for slightly advancing theblank through the gripping-dies after it has been partially 'headed bysaid dies or punches; forming-dies; means for actuating saidforming-dies; finishing heading dies or punches; means for returning thegripping-dies to the line of feed of the rod; means foropening thegripping mechanism prior to the feed; and means' to actuate the headingdies or punches.

21. In a bolt-machine, the combination, with a die-block havingperfor-ations, one of which is provided with a cut-off bushing, ofgrippingdies; toggles for actuating said dies in one direction; a linkfor actuating said toggles; means for opening' said gripping-dies; wedgemechanism for actuating the link; and camand-lever devices for actuatingthe wedge, substantially as described.

22. The combination, with feed-rollers, of pawl-and-ratchet mechanismfor actuating said feed-rollers; a sector for tripping the pawl; apitman for actuating the sector; a pivoted lever to which the pitman isconnected; a cam for actuating said lever in one direction; a spring forreturning the lever: a perforated die-block having a cut-olf bushing; apair of gripping-dies; means for actuating the gripping-dies; a pair offorming-dies; toggle mechanism for opening and closing saidgripping-dies; wedges for actuating the toggle mechanism; and means forreciprocating the wedges, substantially as described.

23. The combination with gripping-dies, of means to feed a blankthereto; means to shift said dies to move the blank into a positionsubstantially parallel to its fed position; means for forming bysuccessive steps a head upon the blank; forming-dies; and means foradvancing the blank in the gripping-dies between the steps and placingthe head under formation into position for engagement and support by theforming-dies during the succeeding steps.

24. In a machine for forming at successive steps a head upon a blank,the combination of blank-holding means, of means to feed a blankthereto; means to shift said holding means to move the blank into aposition substantially parallel to its fed position; means forpreliminarily upsetting the blank; means for moving the blank forward inthe holding means after such upsetting; and means 'for embracing therear of the upset portion and support-- ing it during the succeedingsteps.

25. In a bolt-machine the combination with a die-block, of grippingmechanism embody- USI .means cooperative with the die-blank to sever thestock rod; means' to open and close the same and to move them across thedie-block to sever a blank from a stock rod; heading mechanism; means tointermittently function the heading mechanism; forming-dies; means toactuate the same; and means to advance the blank through thegripping-dies while open and between functions of the heading mechanismto place its head out of contact with the gripping' mechanism and inposition to be acted Upon by the forming-dies and thereby held againstthe thrust of the heading mechanism.

26. In a heading-machine the combination with a series of heading'mechanisms, means to act-nate the same, means to bring the members ofsuch series consecutively into the working` position of the machine,means to Vfeed the stock rod, means to sever a blank therefrom and shiftthe same into a position in parallelism to the line of the Yfeedmovement and to hold the same during the action of a portion of saidseries of heading mechanisms, means to advance the blank in the axialline in which it is held, means to hold the same in such position forthe action of the remainder of the series of heading mechanisms, andsaid forming-dies and means to actuate the same.

27. rI`he combination with heading mechanism embodying a number ofheading devices, means to actuate the same serially, means to feed thestock, means to sever a blank and carry it to a position parallel to theline of feed,

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means to control such blank and present it to the heading mechanisms atanumber of points alongI the line upon which it is held, and sideformingdies and means to aetutate the same.

28. The combination with heading mechanisms, means to feed a stock rod,means to sever ablank therefrom and shift it to a position inparallelism with its line of feed, means to perform a number ofheadingoperations thereon while the blank is in a number of positionsupon the line of such parallel position, and means to thereafter returnthe blank to a position in the line of the feed, and side-forming` diesand means to aetuate the same.

Q9. In a machine of the class described, the combination with means tofeed a rod along its axial line, of means to cut ofi' a blank and shiftthe same into a position with its axial line parallel to the line of itsfeed; heading mechanism; and means to present the blank thereto at anumber of points in such parallel line, and side-forming dies and meansto ac-A Titnesses for Franklin Holland:

J. NICHOLAS Seminar, Gmo. E. TAYLOR.

